The ablation environment is controllable, which provides an effective way for the ablation test of thermal protection materials. The ablation tests show that the line ablation rate of the C/C composite nozzle at 3380 K and 1 MPa is 0.053 mm/s, verifying the combined effect of thermochemical and mechanical ablation. The multi-disciplinary dynamic variable-precision system simulation method is helpful for more accurate design and test analysis, and the maximum error is less than 5%. The results show that the system can provide a wide temperature range (756~3565 K) and pressure range (0.2~4.2 MPa). In addition, a unique internal flow field ablation test was performed on the 4D C/C composite simulating the working conditions of the SRM.
A general variable-precision modular system simulation method is proposed to analyze the dynamic characteristics of the system. In this paper, a new multiphase flow ablation test system, with an Al 2O 3 particle delivery device based on an oxygen-kerosene liquid rocket engine, is designed and manufactured. Internal flow field ablation is an important issue in thermal protection materials for rocket engines and hypersonic vehicles.
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